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Finding the Fourth Proportional to 8,604.71, 12,906.31 and 2,681.35

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Solution

The fourth proportional to 8,604.71, 12,906.31 and 2,681.35 is: 4,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.71 : 12,906.31 = 2,681.35 : x
  2. Step 2: Convert to fraction form
    8,604.71/12,906.31 = 2,681.35/x
  3. Step 3: Cross multiply
    8,604.71x = 12,906.31 × 2,681.35
  4. Step 4: Simplify right side
    8,604.71x = 34,606,320.91
  5. Step 5: Solve for x
    x = 34,606,320.91/8,604.71
  6. Step 6: Final answer
    x = 4,021.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.